My own best guess right now is that the "other children" in the household have revealed information about the timeline when Codi stopped being around and that is not matching up with dad's reporting of events.
I did find this which relieves me a bit, at least I feel like this indicates Codi hasn't been missing for months, like with Harmony's case.
“It’s heartbreaking to see when police knock on your door and then they show you a picture of one of the kids who play with your children,” said Tisha Hunt, a neighbor who lives at the Buckroe Pointe Apartment Townhomes.
She said her daughter, Dream, is a friend of Codi's and they play together often.
“All the kids in the neighborhood play together," she said. "They play outside in the yard, games.”
Neighbors, other volunteers help in search of missing Codi Bigsby | 13newsnow.com